I read this book with some hesitation as I wasn't sure it would be for me given the young adult target audience however I was pleasantly surprised. The world building was done really well as you discover the universe through experience than having it simply explained to you. I wasn't a massive fan of the main character but that didn't deminish the book as I really enjoyed a lot of the secondary characters which I always find is a sign of a good book. It ends on a cliffhanger so I'll be reading the next one immediately.